The urinary system of a human is composed of paired kidneys and ureters, a urinary bladder, and a urethra. The main function of the urinary system is to produce urine and eliminate waste materials outside the body. Each human holds roughly one million microscopic nephrons in their kidney which are packed in the renal cortex. Nephrons constitute the structural and functional part of the kidney.

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Chapter 35, Problem 5FIB

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The urinary system of a human is composed of paired kidneys and ureters, a urinary bladder, and a urethra. The main function of the urinary system is to produce urine and eliminate waste materials outside the body. Each human holds roughly one million microscopic nephrons in their kidney which are packed in the renal cortex. Nephrons constitute the structural and functional part of the kidney.

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